Luis, she is precious and I can sense this...being very spoiled by you & your wife!
As she should be...she's adorable!!
As I've mentioned before, my cat is also...CoCo Chanel...tell your wife, I approve
her great choice of names
She's adorable.
As for the pinkness in the face it could be some allergy signs or the beginning of a yeast problem. It's hard to tell without some good pictures of the area.
Getting her on a good food may be the first step. But it could take a few weeks to see the change from the better food.
You can also clean her face with a solution of peroxide and baking soda and distilled water and then dry really well. making sure to get it good and dry after you wipe it off.
Apple Cider Vinegar is also good to wipe the chin with to help if it's yeasty.
If it seems raw like an acne then you should apply some antibiotic ointment like neosporin.
Also it's a good idea to wipe her chin after she drinks. keep it as dry as possible.
Yes you can use that Apple Cider Vinegar. Wipe some on with some cotton, and then dry with a cloth. And continue drying her face after she drinks. Give it some time and let us know how it goes.